The price of an item has risen to $279 today yesterday it was $180 find the percentage increase

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?